We have a bunch of locations that require external scanning by our PCI vendor to remain compliant. About half of my locations are in bridge mode, the others are not. The sites that are in router mode are failing scans, saying that port 500001 is open. I need to close this port on my modems. I don't see how this is possible on the modem? Can anyone let me know what is running on 500001? I'm not running in DMZ but I am doing 2 port forwards, 5150 and 5160.
Serial Number: 93171N092946
Hardware Version: 260-2173300
Software Version: 10.5.4.527511-sonic